<nz-select #select
nzShowSearch
nzServerSearch [nzAllowClear]="true"
nzPlaceHolder="请输入搜索字符串"
[nzShowArrow]="false"
[(ngModel)]="selectedValue"
(nzOnSearch)="search($event)"
(ngModelChange)="change($event)"
>
<nz-option *ngFor="let o of listOfOption" [nzLabel]="o.AKE046" [nzValue]="o.AKE042" nzCustomContent > 
  <div>{{o.AKE046}}</div> <span>{{o.AKE042}}</span>&nbsp; <span>{{o.AKE023}}</span>
</nz-option>
</nz-select>  